Antimicrobial Pleated Filter Nominal Filter Size 12x24x4 Nominal Height 12 In. Nominal Width 24 In. Nominal Depth 4 In. MERV 8 Frame Type Moisture Resistant Die Cut Chipboard Nominal Pleat 0.4 High Velocity 625 fpm High Initial Resistance 0.25 In.WC Final Recommended Resistance 1.0 In.WC Max Velocity 625 fpm Media Area 16.5 sq. ft. Max Temp 180 Degrees F Pleats per Linear Feet 12 Standards UL 900 Classified Actual Height 11-3/8 In. Actual Width 23-3/8 In.